Mysterious moons and alien life: the 42 best space movies ever made

The most memorable stuff in Kenneth Branagh's entertaining Marvel effort wasn't the earth-bound romance between Chris Hemsworth and Natalie Portman, but the vision of Asgard as a glittering planetary body on its own dimensional plane, and the battle for leadership between Thor's father (Anthony Hopkins) and brother (Tom Hiddleston). Tim Robey